John Heilemann

John Arthur Heilemann (born January 23, 1966) is an American journalist and national affairs analyst for NBC News and MSNBC. With Mark Halperin, he co-authored ''Game Change'' (2010) and ''Double Down'' (2013), books about presidential campaigning. Heilemann has formerly been a staff writer for ''New York'', ''Wired'', and ''The Economist.'' Provided by Wikipedia